Letters from Lionel Walter Rothschild, 2nd Baron Rothschild, to Philip Lutley Sclater regarding an expedition to the Sandwich Islands, papers on birds of the Sandwich Islands, drawings of a Rail, ornithological exhibitions, the sale of a rhinoceros, his drawing of a rhinoceros to be published in the Proceedings of the Zoological Society of London, his Cassowaries at Tring, a transfer of Tragelaphus, Galapagos Tortoises, Eclectus Parrots, Lemurs and Zebras

Letter from J A Shepherd to Peter Chalmers Mitchell requesting a student ticket giving permission to sketch the animals at the Gardens of the Zoological Society of London

Letters from Sir Lawrence Alma Tadema regarding an unmounted lion's skin and a letter in support of an artist being allowed to study in the Zoological Gardens

Letter from William Thomson, Baron Kelvin, to Philip Lutley Sclater recommending Miss Jackson to be admitted to the Gardens of the Zoological Society of London to paint

Collection of biographical notes on Yarrell; bibliography of his published works; copies, transcriptions and abstracts of letters to and from Yarrell; copies of wood block engravings

Letter from Lawson Wood to Peter Chalmers Mitchell regarding the renewal of his ticket to sketch in the Gardens of the Zoological Society of London

Letter from H Woods who says he spoke to Wombwell (a dealer in Commercial Road) about the kangaroo. He would be satisfied with the female and would give an equivalent. He had his eye on a bear in the corner on the left of the elephants. He encloses a drawing of the head of the bear but the den was too dark to see it distinctly